CN101418445A - Adhesive agent for preset coating for laser surface alloying as well as preparation method and use thereof - Google Patents
Adhesive agent for preset coating for laser surface alloying as well as preparation method and use thereof Download PDFInfo
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- CN101418445A CN101418445A CNA2008103062964A CN200810306296A CN101418445A CN 101418445 A CN101418445 A CN 101418445A CN A2008103062964 A CNA2008103062964 A CN A2008103062964A CN 200810306296 A CN200810306296 A CN 200810306296A CN 101418445 A CN101418445 A CN 101418445A
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- preset coating
- alloying
- adhesive agent
- laser surface
- polyvinyl acetate
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Abstract
The invention discloses an adhesive for laser surface-alloyed preset coatings, as well as a preparation method and application thereof. The adhesive consists of the following raw material components in weight portion: 2 to 5 portions of poly (vinylethyl ester), 0.5 to 1 portion of bentonite, 0.5 to 1 portion of Y2O3 and 90 to 95 portions of anhydrous ethanol. Compared with the prior art, the adhesive has the advantages that raw materials used are easy to get and low in cost; the adhesive is wide in application range, can be used for bonding laser surface-alloyed preset coating powder of low/medium-carbon steel or low/medium-carbon alloy steel, and is high in binding force with metal matrixes and good in fluidity; the thickness of the preset coating is easy to control; and the adhesive can ensure that alloyed powder is more uniformly spread on the surfaces of metal matrixes, and is high in the drying speed of the preset coating, free from toxicity and pungent odor, little in smoke dust produced in a processing course, high in cost performance and convenient to brush and wipe off.
Description
Technical field:
The present invention relates to a kind of adhesive agent for preset coating for laser surface alloying and its production and application, especially for adhesive agent for preset coating for laser surface alloying of low, medium carbon steel or low medium carbon alloy steel and preparation method thereof, belong to metallurgical technology field.
Background technology:
Laser surface alloying is the important component part that material surface modifying is handled, and is the characteristic of utilizing the laser beam rapid heating fusing of high-energy-density, makes the alloying element of base material top layer and interpolation melt-blended, is the surface alloying layer of base thereby form with former base material.Adding mode by alloying element is divided into three major types with it, i.e. preset laser alloying, the laser alloying of powder feeding formula and gas type laser alloying.What at present, application was maximum is the preset laser alloying.The method that presets alloying element mainly contains hot spray process and chemical adhesive method.Because there are metallurgical imperfections such as cavity, pore in the preset coating of hot spray process, simultaneously, between thermally sprayed coating and the base material machinery or half mechanical bond, bonding strength is lower, and in use obscission easily takes place in alloying layer, has limited its range of application.And the coating of chemical adhesive method have organize that tiny, no hole, coat-thickness are controlled, coating and base material be characteristics such as metallurgical binding, bonding strength height.But laser alloying preset coating caking agent is to use traditional polyvinyl chloride (PVC) and cellulose acetate etc., the bonding strength of these caking agents and base material is low, alloying layer comes off easily, the spreadability of metal-powder is poor, it is bigger to produce flue dust in the process of laser processing, and environment is had certain pollution.Therefore, the caking agent that research and development are exclusively used in the laser alloying preset coating becomes the vital research topic of laser alloying industry, also is the key issue that needs to be resolved hurrily.
Summary of the invention:
The objective of the invention is to: a kind of adhesive agent for preset coating for laser surface alloying and its production and application is provided.
The present invention constitutes like this: a kind of adhesive agent for preset coating for laser surface alloying, form by the material composition of following weight part: 2～5 parts of polyvinyl acetate ethyl esters, 0.5～1 part of wilkinite, Y
2O
30.5～1 part, 90～95 parts of dehydrated alcohols.
Preferably form: 3 parts of polyvinyl acetate ethyl esters, 0.5 part of wilkinite, Y by the material composition of following weight part
2O
30.5 part, 95 parts of dehydrated alcohols.
The preparation method of adhesive agent for preset coating for laser surface alloying of the present invention is: take by weighing each material composition in proportion, with polyvinyl acetate ethyl ester, wilkinite and Y
2O
3Mix and fully dissolve, promptly with dehydrated alcohol.
Concrete dissolution process is: earlier dehydrated alcohol is heated to 75～85 ℃, adds the polyvinyl acetate ethyl ester, insulation is also constantly stirred, treat that it fully dissolves after, add wilkinite and Y more successively
2O
3, constantly stir, until dissolving fully.
The insulation dissolution time of polyvinyl acetate ethyl ester in dehydrated alcohol is 20～30min.
The application of aforementioned laser surface alloying adhesive agent for preset coating in the laser alloying preset coating powder of low, medium carbon steel or low medium carbon alloy steel bonding.
Concrete application method is: alloying powder is placed caking agent, stir, be coated on metal base surface equably and get final product.
Compare with existing adhesive agent for preset coating for laser surface alloying, the distinguishing characteristics that caking agent of the present invention had is as follows:
(1) selecting for use of material composition: the polyvinyl acetate ethyl ester is the seal gum of industrial widespread use, starting material are easy to obtain, dissolve in alcohol, and the polyvinyl acetate ethyl ester has good adhesiveproperties in 2～5% soluble ends in alcohol, enough be used for the bonding alloy metal-powder, can be made into a large amount of caking agents with seldom polyvinyl acetate ethyl ester.Traditional caking agent is many makes solvent with acetone, and the present invention selects for use dehydrated alcohol (being alcohol) to make solvent, greatly reduces production cost.In triturating of the present invention, the contriver earlier with the polyvinyl acetate ethyl ester as aggregate, with alcohol is solvent, 2～5 parts of polyvinyl acetate ethyl esters are dissolved in 90～95 parts of alcohol promptly have good cementability, but by the laser alloying test, the flowability of discovery caking agent and the dispersiveness of metal-powder are good inadequately.
(2) activity and the suspension in order to improve caking agent makes caking agent have better flowability and powder dispersiveness, and the contriver adds Y in the spirituous solution of polyvinyl acetate ethyl ester
2O
3And wilkinite.Y
2O
3Being the additive that is widely used in iron and steel and non-ferrous alloy, is a kind of surfactant, can increase the flowability of powder in caking agent; Wilkinite has good physical and chemical performance, have the title of " omnipotent " clay, and advantages of good caking property, suspension are arranged, and can make alloying powder spread over metal base surface more equably.But the Y that adds
2O
3And wilkinite wants an amount of, and is too many then can mix excessive impurity guaranteeing the enough bonding strengths and the homodisperse of powder, to have lacked not have corresponding effect, influences the performance of alloying layer.The contriver adds 0.5～1 part of wilkinite, Y by with reference to some pertinent literatures in the spirituous solution of polyvinyl acetate ethyl ester
2O
30.5 carry out the laser alloying test after～1 part again, find that this caking agent has best cementability and flowability.
(3) because the polyvinyl acetate ethyl ester has good cementability, and bentonitic adding has more increased its adhesiveproperties, 180 ° of stripping strengths of room temperature can reach 15N/2.5mm, are doubled than traditional caking agent.Therefore, the bonding force of caking agent of the present invention and metallic matrix is very strong.
During (4) with this caking agent brushing, because the flowability of powder in caking agent better, so the thickness of preset coating is easy to control.
(5) applied range can be used for laser alloying preset coating powder bonding of low, medium carbon steel or low medium carbon alloy steel.
(6) solvent is dehydrated alcohol (being alcohol), and alcohol is volatilization easily in air, and the preset coating rate of drying is fast.
(7) nontoxic, have no irritating odor; It is little to add the flue dust that produces man-hour; The cost performance height; Brushing and removal are all very convenient.The cost price of laser alloying adhesive agent for preset coating per kilogram of the present invention is 10 yuan, with the bonding strength of metallic matrix be 30MPa; The bonding strength of the Textel 1101 type caking agents of SUMITOMO CHEMICAL company is 31MPa, and the per kilogram price then reaches 220 yuans.This shows that the product of the bonding strength of caking agent of the present invention and SUMITOMO CHEMICAL company is approaching, but price is more much lower than the Japanese firm, so caking agent product of the present invention has higher cost performance.
Embodiment:
Embodiments of the invention 1: the preparation of adhesive agent for preset coating for laser surface alloying: take by weighing polyvinyl acetate ethyl ester 30g, wilkinite 5g, Y
2O
35g and dehydrated alcohol 950g earlier are heated to 80 ℃ with dehydrated alcohol, add the polyvinyl acetate ethyl ester, and insulation is also constantly stirred 25min, it is fully dissolved after, add wilkinite and Y more successively
2O
3, constantly stir, until dissolving fully, promptly get the caking agent product.
The application of prepared caking agent in the laser alloying preset coating powder of low, medium carbon steel bonding: alloying powder is placed caking agent, stir, be coated on low, medium carbon steel matrix surface then equably and get final product.
Embodiments of the invention 2: the preparation of adhesive agent for preset coating for laser surface alloying: take by weighing polyvinyl acetate ethyl ester 40g, wilkinite 10g, Y
2O
310g and dehydrated alcohol 940g earlier are heated to 85 ℃ with dehydrated alcohol, add the polyvinyl acetate ethyl ester, and insulation is also constantly stirred 20min, it is fully dissolved after, add wilkinite and Y more successively
2O
3, constantly stir, until dissolving fully, promptly get the caking agent product.
The application of prepared caking agent in the laser alloying preset coating powder of low medium carbon alloy steel bonding: alloying powder is placed caking agent, stir, be coated on low medium carbon alloy steel matrix surface then equably and get final product.
Embodiments of the invention 3: the preparation of adhesive agent for preset coating for laser surface alloying: take by weighing polyvinyl acetate ethyl ester 50g, wilkinite 7g, Y
2O
38g and dehydrated alcohol 930g earlier are heated to 75 ℃ with dehydrated alcohol, add the polyvinyl acetate ethyl ester, and insulation is also constantly stirred 30min, it is fully dissolved after, add wilkinite and Y more successively
2O
3, constantly stir, until dissolving fully, promptly get the caking agent product.
The application of prepared caking agent in the laser alloying preset coating powder of low, medium carbon steel or low medium carbon alloy steel bonding: alloying powder is placed caking agent, stir, be coated on low, medium carbon steel or low medium carbon alloy steel matrix surface then equably and get final product.
Claims (7)
- [claim 1] a kind of adhesive agent for preset coating for laser surface alloying is characterized in that: it is made up of the material composition of following weight part: 2～5 parts of polyvinyl acetate ethyl esters, 0.5～1 part of wilkinite, 0.5～1 part of Y2O3,90～95 parts of dehydrated alcohols.
- [claim 2] is characterized in that according to the described adhesive agent for preset coating for laser surface alloying of claim 1: it is made up of the material composition of following weight part: 3 parts of polyvinyl acetate ethyl esters, 0.5 part of wilkinite, 0.5 part of Y2O3,95 parts of dehydrated alcohols.
- [claim 3] be the preparation method of adhesive agent for preset coating for laser surface alloying as claimed in claim 1 or 2, it is characterized in that: take by weighing each material composition in proportion, fully dissolve with polyvinyl acetate ethyl ester, wilkinite and Y2O3 mixing and with dehydrated alcohol, promptly.
- [claim 4] is according to the preparation method of the described adhesive agent for preset coating for laser surface alloying of claim 3, it is characterized in that: earlier dehydrated alcohol is heated to 75～85 ℃, add the polyvinyl acetate ethyl ester, insulation is also constantly stirred, after treating that it fully dissolves, add wilkinite and Y2O3 more successively, constantly stir, until dissolving fully.
- [claim 5] is characterized in that according to the preparation method of the described adhesive agent for preset coating for laser surface alloying of claim 4: the insulation dissolution time of polyvinyl acetate ethyl ester in dehydrated alcohol is 20～30min.
- [claim 6] adhesive agent for preset coating for laser surface alloying application in the laser alloying preset coating powder of low, medium carbon steel or low medium carbon alloy steel bonding as claimed in claim 1 or 2.
- [claim 7] is characterized in that according to the application of the described adhesive agent for preset coating for laser surface alloying of claim 6: concrete application method is: alloying powder is placed caking agent, stir, be coated on metal base surface equably and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103062964A CN101418445A (en) | 2008-12-16 | 2008-12-16 | Adhesive agent for preset coating for laser surface alloying as well as preparation method and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103062964A CN101418445A (en) | 2008-12-16 | 2008-12-16 | Adhesive agent for preset coating for laser surface alloying as well as preparation method and use thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101418445A true CN101418445A (en) | 2009-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008103062964A Pending CN101418445A (en) | 2008-12-16 | 2008-12-16 | Adhesive agent for preset coating for laser surface alloying as well as preparation method and use thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220554A (en) * | 2011-05-30 | 2011-10-19 | 常州大学 | Method for surface modification treatment of X70 pipe line steel |
| CN106801225A (en) * | 2017-03-02 | 2017-06-06 | 重庆理工大学 | Laser alloy coating, preparation method and laser alloying method |
| CN106868500A (en) * | 2017-03-02 | 2017-06-20 | 重庆理工大学 | A kind of surface alloying coating, preparation method and mould electron beam alloyage method |
| CN106868501A (en) * | 2017-03-02 | 2017-06-20 | 重庆理工大学 | A kind of surface alloying coating, preparation method and die surface processing method |
| CN106868502A (en) * | 2017-03-02 | 2017-06-20 | 重庆理工大学 | Hot-work die laser alloying coating and preparation method and laser alloying method |
| CN107384059A (en) * | 2017-06-30 | 2017-11-24 | 大冶特殊钢股份有限公司 | A kind of non-skid coating and its preparation method and application |
-
2008
- 2008-12-16 CN CNA2008103062964A patent/CN101418445A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220554A (en) * | 2011-05-30 | 2011-10-19 | 常州大学 | Method for surface modification treatment of X70 pipe line steel |
| CN102220554B (en) * | 2011-05-30 | 2013-03-13 | 常州大学 | Method for surface modification treatment of X70 pipe line steel |
| CN106801225A (en) * | 2017-03-02 | 2017-06-06 | 重庆理工大学 | Laser alloy coating, preparation method and laser alloying method |
| CN106868500A (en) * | 2017-03-02 | 2017-06-20 | 重庆理工大学 | A kind of surface alloying coating, preparation method and mould electron beam alloyage method |
| CN106868501A (en) * | 2017-03-02 | 2017-06-20 | 重庆理工大学 | A kind of surface alloying coating, preparation method and die surface processing method |
| CN106868502A (en) * | 2017-03-02 | 2017-06-20 | 重庆理工大学 | Hot-work die laser alloying coating and preparation method and laser alloying method |
| CN107384059A (en) * | 2017-06-30 | 2017-11-24 | 大冶特殊钢股份有限公司 | A kind of non-skid coating and its preparation method and application |
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Open date: 20090429 |